CY7C457 Просмотр технического описания (PDF) - Cypress Semiconductor
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производитель
CY7C457
Cypress Semiconductor
CY7C457 Datasheet PDF : 23 Pages
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CY7C455
CY7C456
CY7C457
Selection Guide
Maximum Frequency (MHz)
Maximum Cascadable Frequency
Maximum Access Time (ns)
Minimum Cycle Time (ns)
Minimum Clock HIGH Time (ns)
Minimum Clock LOW Time (ns)
Minimum Data or Enable Set-Up (ns)
Minimum Data or Enable Hold (ns)
Maximum Flag Delay (ns)
Maximum Current
(mA)
Commercial
Industrial
Selection Guide (continued)
Density
OE, Depth Cascadable
Package
7C455/6/7–12
83.3
83.3
9
12
5
5
4
0
9
160
180
7C455/6/7–14
71.4
71.4
10
14
6.5
6.5
5
0
10
160
180
7C455/6/7–20
50
50
15
20
9
9
6
0
15
140
160
7C455/6/7–30
33.3
33.3
20
30
12
12
7
0
20
120
140
CY7C455
512 x 18
Yes
52-Pin PLCC/PQFP
CY7C456
1,024 x 18
Yes
52-Pin PLCC/PQFP
CY7C457
2,048 x 18
Yes
52-Pin PLCC/PQFP
Maximum Ratings[1]
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature ................................–65°C to +150°C
Ambient Temperature with
Power Applied............................................–55°C to +125°C
Supply Voltage to Ground Potential ............... –0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State ............................................... –0.5V to +7.0V
DC Input Voltage............................................ –3.0V to +7.0V
Output Current into Outputs (LOW) .............................20 mA
Static Discharge Voltage............................................ >2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current..................................................... >200 mA
Operating Range
Range
Commercial
Industrial[2]
Ambient
Temperature
0°C to +70°C
–40°C to +85°C
VCC
5V ± 10%
5V ± 10%
Notes:
1. The Voltage on any input or I/O pin cannot exceed the power pin during
power-up.
2. TA is the “instant on” case temperature.
Document #: 38-06003 Rev. *A
Page 3 of 23
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